GBC WireBind Binding Spines 78 Black 100 Pack - Binding Spines

Permanently bind documents with these professional spines when presentation and quality are primary concerns. Ideal for busy corporate offices, universities and accounting firms. Sturdy spines are the perfect choice for important projects. With a 7/8" diameter, they securely hold 175 pages." This binding allows 360 degree rotation. Spines also allow pages to lie flat for reading, note taking and photocopying. Great for creating study guides. WireBind spines bind pages through 21 holes, with a 2:1 pitch, which creates two loops per inch